3 years ago

8x7+4-10SOMEONE HELP PLS AND THANK U:)

Mathematics

2 answers:

pychu [463]3 years ago

7 0

Answer:

Step-by-step explanation:

olga2289 [7]3 years ago

6 0

Answer:

8x⁷-6?

Step-by-step explanation:

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mr Goodwill [35]

Answer:

B and C

Step-by-step explanation:

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2 years ago

A deep sea diver is 28 feet below sea level.the location of the diver is represe nted by the integer -28he swims down and additi

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3 years ago

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Evaluate the integral using integration by parts with the indicated choices of u and dv. (Use C for the constant of integration.

trasher [3.6K]

Answer:

$\frac{xe^{7x}}{7} + \frac{e^{7x}}{49}$

Step-by-step explanation:

Given the integral equation

$\int\limits{xe^{7x}} \, dx \\$

According to integration by part;

$\int\limits {u} \, dv = uv + \int\limits {v} \, du$

u = x, dv = e^7x

du/dx = 1

du = dx

$v = \int\limits {e^{7x}} \, dx \\v = e^7x/7$

Substitute the given values into the formula;

$\int\limits {xe^{7x}} \, dx = x(e^{7x}/7) + \int\limits ({e^{7x}/7}) \, dx\\\int\limits {xe^{7x}} \, dx = \frac{xe^{7x}}{7} + \frac{e^{7x}}{7*7} \\\int\limits {xe^{7x}} \, dx = \frac{xe^{7x}}{7} + \frac{e^{7x}}{49}$

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2 years ago

What is 2x+1+7x=-8? Could you show work, please?

eduard

Answer:

Step-by-step explanation:

2x + 1 + 7x= -8

~2x + 7x = 9x

9x + 1 = -8

move 1 to the other side

9x = -1 -8

9x = -9

divide

X = -1

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2 years ago

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